Quick release valve



- June '16, 1931. PRATT 1,810,292

QUICK RELEASE VALVE Filed Nov. 22, 1929 valve, and has for its object toprovide a Patented June '16,; .1931

PATENT: OFFICE W BEST raarnorcnroaco, ILLINOIS V QUICK. RELEASE, ALVEApplication filed November 22, 1929. semi No. 409,047.

' The present invention relates to improvements in the structure ofvalves of fluid pressure brake and signal mechanisms commonly termedconductors valve or quick release valve of the characterreferred to,which will provided with a suitable inlet'port 2, and an be of extremelysimple construction and very durable. t I In the accompanying drawings,which illustrates one embodiment of the invention:

Figure 1 is a plan of the improved valve.

Figure 2 is a section substantially-on the line 2+2 of Figure 1, showingthe valve in normal positionclosing the outlet.

Figure 3 is a section at right angles to that in Fig. 2, showing theparts in an adjusted position, inwhich the valve is open.

Figure 1 is a plan of the valve member detached from the casing.

Figure 5 is a bottom or inner face View of the valve operatnig arm,detached.

Referring to the drawings, in the several figures of which like partsare designated by thesame reference characters, it will be seen that theimprovements comprise a casing 1,

outlet with which cooperates a valve 3;

The valve 3 is provided witha face plate 4; adapted to be forced againsta valve seat 5 located about the inner end of the casing outing 1, sothat it may rock or swing across the outer end of the outlet, and meansare interposed between this arm and the valve body, sothat when the armis turnedin either direction from its normal position, shown in Figure1, the valve will be moved inward to open the casing outlet.

As shown, a ball 12 is interposed between let. As shown, this seat isformed at the the; actuating arm and valve, being seated in a suitablesocket formed in the outer end of the valve body and within a channelprovided in the, inner face of the 1 arm and extendingsubstantiallyconcentric with the axis about which it is adapted toturn.-

The channel in theinner face of the arm 10 referredto comprises acentral or midsection 13 of maximum depth, in which the ball 12 ispositioned when the valve is closed, and sections'l l of said channelextending in diametrically opposite directions from said central portion13 are of reduced depth, so g that as the arm is turned, the ball 12willpass from the portion 13 of said channel to one of the portions 14thereof, and thus force the I valveinward from the position shown inFig:

ure 2 t0 that-illustrated in Figure 3.

Y Outward movement of the actuating arm 10 is prevented by providing-"atongue'lOa thereon, which extends-into a guideway or groove 15 formed inthe casingl.

By this arrangement the actuating arm is held against movement. awayfrom thecasing and limited to swing in' a plane extending transverselyof theoutlet.

As shown, the free end of the arm 10 is apertured, as at 16,toreceiveeither a suitablehand-piece, or a cord or cable, such as.commonly provided in fluid pressure brake or signal systems, a

It is believed hat the operation and advantages of the improvements willbe readily understood from the foregoing descrip tion of the drawings.

.It will be noted that the entire structure includes a minimum number ofparts, all of which can be of strong and durable construction so thatthere is little or no dangerof their becoming disarranged. The desiredmovement of the actuating arm is readily effected' and the entirestructure is a very efficient one.

' It will be noted that by manipulation of the arm 10, the valve may beheldin either E partially open or fully open position. That is, when thearm is turned so that the ball-12 is in rcontact with the shallowerportion 14; of the groove in the underface of the arm, the valve will bemoved from its seat, but,

will not be fully opened. When, however, the arm is turned into theposition shown in Figure 3 in which the ball is beneath the flat surfaceat either end of the groove 14, the valve is depressed to the maximumextent.

I claim:

1. A quick release valve for the purpose described comprising a casingprovided with an inlet and an outlet, a valve adapted to close theoutlet, an arm pivoted on the casing to move transversely of the outletaboutan axis extending substantially atright angles to the plane of theouter end of the outlet, and

I means interposed between the arm and valve whereby the latter will bemoved to open'the outlet as the arm is turned about its pivotalconnection with the casing.

2. A quick release valve for the purpose described comprising a casingprovided with an inlet and an outlet, a valve within the casing adaptedto close the outlet, an operating arm pivotally mounted on the casing tomove across the outer end of the outlet, and means between the arm andvalve whereby the latter will be moved to open the outlet as the armisturned about its pivotal connection with the casing.

3. A quick release valve for the purpose described comprising a casingprovided with an inlet and an outlet, a valve seat at the inner end ofthe outlet, a valve adapted to cooperate with said seat to close theoutlet, a spring acting to normally hold the valve against the seat, thevalve having a member extending into the outlet, an arm pivoted to thecasing to move across the outer end of the outlet, and means interposedbetween the arm and valve member within the outlet for moving the valvein opposition to the spring when the arm is moved about its pivot.

4. A quick release valve for the purpose described comprising a casingprovided with an inlet and an outlet, a valve adapted to close theoutlet, a spring acting to hold the valve in closed position, anoperating arm pivotally mounted on the casing to move across the outerend of the outlet and having formed in its inner face a channelextending substantially concentric with its pivot, said channel being ofgreater depth near its middle than at its ends, and a spherical shapedbody arranged within said channel and contacting with the V valve,whereby the arm is turned about its erate with the casing to limitmovement of the arm about its pivot, and means between the arm and valvewhereby the latter Wlll be moved to open the outlet as the arm 18 turnedvsaid channel, and means between the arm and valve whereby the latterwill be moved to open the outlet as the arm is turned about its pivotalconnection with the casing.

7. A quick release valve for the purpose described comprising a casingprovided with an inlet and an outlet, a valve adapted to close theoutlet, a spring acting to hold the valve in Vclosed position, anoperating arm pivotally mounted on the casing, and means interposedbetween the arm and valve, whereby the latter Will be moved inopposition to the sprlng as the arm is turned about its pivotal connec:

tion with the casing, said means and arm being so related that the valvewill be held in either of a plurality of different open positions inaccordance with variations in the extent of movement of the arm ineither direction from its position when the valve is closed.

8. A quick release valve for the purpose described comprising a casingprovided with an inlet and an outlet, a valve adapted to close theoutlet, a spring acting to hold the valve in closed position, anoperating arm pivotally mounted on the casing and having formed in itsinner face a channel extending; substantially concentric with its pivot,and means supported by the valve and extending into said channel, thelatter varying in depth at different points in its length, whereby asthe arm is turned about its pivotal connection with the casing the valvewill be moved in opposition to the spring and held in any one of aplurality of open positions according to the extent of turning movementof the arm.

In testimony whereof I have hereunto set my hand.

' BEST PRATT.

